These tropes are all pipe dreams.
Flying cars would cause a traffic nightmare, and would be much more resource intensive than any ground based method. fail.
Personal jet pack: same problem, as we live in a world limited by the laws of physics around maintaining momentum for moving objects (pack wants to stop AND fall). fail.
Robot maid: why would a cybernetic robot with partial AI be used to clean a home, when you could hire someone for 1/1000000000 the cost? by the time such devices are self designing and evolving in a manner similar to biological life, they will be demanding compensation for work and representation in society. fail.
Automated house: while some functions may be nice, such as an automated heating/cooling system, most of it just increases the cost of the home, when we dont need more luxury homes for the rich. (and thats the other argument against all these ideas, they assume that everyone will be a millionaire, or that the poor dont matter when designing tech). fail.
Computer teacher: while AI or the closest we can get will definitely remain with us as an adjunct(sans a herbertian outcome), relying on such a device for teaching children is scary. learning is so much more, and this breaks the cycle of human to human communication that makes us who we fundamentally are.fail.
Underwater city: live under a dome, with the risk of it collapsing every second, and complete destruction? for what? lack of land to live on? if we become so overpopulated that we need to spend thousands of times more money to live underwater, maybe we should reverse, then stabilize our rate of reproduction, both being really cheap methods for solving most of our problems.ps i love the domes on moon cities. domes keep OUT pressure, they dont hold IN pressure. we would need to build the domes the other way around, a ring of supporting metal/stone, an a huge bowl to look out of, with the city below ground level. fail.
Pill food: unless we invent a new type of nutrient which is 10 times more caloric per gram, this cant be done. our bodies are physical objects, which need constant replenishment of mass quantities. easier to reengineer the human to live on fewer resources. plus, no more mouth feel? why not replace sex with an electrode in the brain? fail.
I dont know CowboyNeal, but this sounds like an improvement over the original model, based on comments at s/d. do we really want cyberbot ai's replacing us, a la charles stross? that would be complete fail.